| They just do that. I bought three from walmart that were all the same color - the greenish grayish color. Now I have two that are still that coloring, and one that goes from a solid bright lemon yellow, to a paler yellow, to yellow with a green patch on one side or the other, to several green patches up and down the sides. No rhyme nor reason for the color change. It is probably just their mood. Since mine have not bred, I don't think it is breeding coloration. Mine have not been sick or injured in any way, so it can't be that. It changes all the time.
Couple of pics. One showing all yellow, and one (in the tank) showing some green scales on the side. |